﻿// Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
// 
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
// 
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.

using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Linq;
using NuGet;

namespace ICSharpCode.PackageManagement
{
	public class RegisteredPackageSources : ObservableCollection<PackageSource>
	{
		public static readonly string DefaultPackageSourceUrl = "https://www.nuget.org/api/v2/";
		public static readonly string DefaultPackageSourceName = "nuget.org";
		
		public static readonly PackageSource DefaultPackageSource = 
			new PackageSource(DefaultPackageSourceUrl, DefaultPackageSourceName);
		
		public RegisteredPackageSources(IEnumerable<PackageSource> packageSources)
			: this(packageSources, DefaultPackageSource)
		{
		}
		
		public RegisteredPackageSources(
			IEnumerable<PackageSource> packageSources,
			PackageSource defaultPackageSource)
		{
			AddPackageSources(packageSources);
			AddDefaultPackageSourceIfNoRegisteredPackageSources(defaultPackageSource);
		}
		
		void AddPackageSources(IEnumerable<PackageSource> packageSources)
		{
			foreach (PackageSource source in packageSources) {
				Add(source);
			}
		}
		
		void AddDefaultPackageSourceIfNoRegisteredPackageSources(PackageSource defaultPackageSource)
		{
			if (HasNoRegisteredPackageSources) {
				Add(defaultPackageSource);
			}
		}
		
		bool HasNoRegisteredPackageSources {
			get { return Count == 0; }
		}
		
		public bool HasMultipleEnabledPackageSources {
			get { return GetEnabledPackageSources().Count() > 1; }
		}
		
		public IEnumerable<PackageSource> GetEnabledPackageSources()
		{
			return this.Where(packageSource => packageSource.IsEnabled);
		}
	}
}
